Hieronymus Bosch’s The Garden of Earthly Delights is one of the most famous paintings in history. Studio Smack updated it a bit with a modern spin and added a whole lot of other kind of weirdness. Read more >>

C. M. Kosemen is a Turkish painter who has taken Google's trippy DeepDream program to task, using the neural network to enhance his works. The results are at once horrifying, beautiful and practically hallucinogenic. See more >>

Dokoupil is a Czech artist who's been painting with soap for decades, mixing lye with pigments and using a wand to inflate massive bubbles over his canvases—which leave foamy, iridescent shapes behind after they pop.

Artists, like other creative types, like to make corrections and changes to their work. Unlike, say, writers, artists tend to paint over the existing painting when trying afresh. Here are five of those images that we've discovered.